nyswong-er



(Model) S S S S S S E. NYSWONGER.

LOOKING LATCH.

' No. 291,392. Patented Jan. 1; 1884.

, WITNESSES:

XMK7M' S N. PUERS Pmwumu n mr. Wmhingtan. 11c.

EL AH XSWON EB, or

iH-ANEORD, CALIFORNIA.

LOC Kil NG LATCH ,S 3P;EGIF,IQALBIO N tlorming partof Letters-,Patent No. 291,392, dated January 1, 1-8814.

Application filed hugust 17, i883. (Moduli Z10 c z/Z-Z whom it UT/fibj/ concern, Be.it known that 11, Beam-II NYSWONG'E'RA .QfiHanfQrd. in: the .county. of Tulare andsState i of (Ealifornia, have invented a new and ;I m-j proved Lock-,fof which the following 1isia.full, i clear, and exactdescription. j Theobjectof my invention iSgtO proyide a. lock which operates withoutaspring, and; which can beeasily adjusted .in such 31211 3111- ;ner thatit cannot be opened ,frometheoutside. 1 The invention consists ina;lockhaving1a; easing formed of afixed ipartgand a movablej part ghingedtherfeto, the hinged part ibei-ngj adapted to act on the locking-bolt andthrowi the same outward bythe weight of the .saidii ,hinged :part, thereby dispensing with the usel otlaspring. Theloek-casingisiprovided with1 .a glatchbolt forlockinglthehinged .part in such amanner that ,itcannot be raised, and pro-3 vents withdrawing the locking-bolt, :whichl latch bolt can be. operated by .means of a key; or; suitable catch or projection.

Reference is to behad totheaccompanying drawings, forming a part of this specification, in which similar lettersof reference indicate corresponding parts in. all the figures.

Figure lis atlongitudinal sectional elevationof my improved 10ck. Fig. 2 is a side view of the tumbler. Fig. 3 is a side view of i the latch-bolt. i

The lock-casing is composedof afixed section, A, and a movable section, B, pivoted to the top of the section A. The bolt 0 is held to slide between suitable guides in the casing A, and can be projected out of the end of the casing. The inner end of the bolt is provided with aslot,through which apintle passes,which is on the end of an arm, D, secured to a nut. E, through which a knob-ybolt,F, passes, so that by turning the knob thebolt G will be moved inward or outward. A c0llar,G, surrounding the nut E, is provided with a notch or recess, H, in its upper edge, into which notch a tooth, I, projecting from the nut E, passes. The collar G is provided with a downwardly-projecting arm, J, which passes into a recess, J, in the. inner surface of the hinged partB of the lock-casing, which hinged part is made solid, so as to give it as much weight as possible. A latch-bolt, K, is held to slide be tween guide-ridges a b c, projecting from the inner surface of the back of the lock-easing.

The bolt K is provided with downwardly projectinglugs K, which strike: againstithe ends .o fithe ridges b c and limit the movement cof the;sliding latch-bolt Kin the (lllTQCtlQIPOfjtS, length. The hinged part B of the lock-case;

ing is provided in its lower end with a loop, *L, into whichtheinner endiof the latch=loolt .Kis adapted to pass when thesaid hinged .part of the casing is lowered. A block,M,projectsfrom theside of the latcll-bolhtolprevent it froni being forced through the loop. L 51500 far. An elbowshaped tumbler, N. is pivoted .:t0.lth6 latch bolt K, and has one shank projecting througha slot, N,.in the bottom toilthe lock-casing. The tumbler is provided inits horizontal shankwith a beveled recess, n,jfor receiving the bitof the key, and withan otfset m, in its lower edge ashort distanccfrom theend. The key-holeO is so arranged in the casing that the bit of the key caneasily pass into the recess m.

The operation is as follows: Fig. 1 shows the door locked and the parts of the lock .:in :such a position that the door cannot be opened by turning the knob, for if the knob isturned inthe direction of the arrow a to withdraw the bolt .0 the end of the arm Jwill strike against the hinged part B of the lock-casing and cannot raisethesame, as the end ;.0f :the latch-.bolt-K ispassed th rough the loopLi on the lower end .of the hinged part :B,an d thuslocks the same in place. In order to release the hinged part B the tumbler N must be raised either by means of a key or by hand, and then must be pushed toward the outer edge of the l0ck,-casing,whereby the inner end of the latchbolt K will be withdrawn from the loop L. The tumbler must always be raised before it is possible to withdraw the latch-bolt K from the loop L, as the offset m catches on the end of the ridge b and prevents moving the latch-bolt outward. When the latch-bolt is moved inward, the bottom edge of the tumbler slides on the ridge b and drops automatically,thereby locking the latchbolt K in place. As stated, the latch can be moved by a key or by a person in the room by seizing the lower end of the vertical arm, which projects from the bottom of the lock-casing. If the knob is nowturned in the direction of the arrow at, the tooth I of the nut E strikes against one end of the notch H and turns the collar G in the direction of the arrow a, and causes the hinged part B to be raised into the position shown in dotted lines in Fig. 1, and at the same time the bolt 0 is drawn into the casing, thus permitting the door to be opened. As soon as the knob is released the weighted hinged part B drops back into its normal position, and thereby swings the arm J and the collar G in the inverse direction of the arrow on, and causes the arm D to push the bolt 0 outward. As the lock requires no spring, its construction is simplified materially. The tumbler N and the bolt K form a perfect night-latch, which can be adjusted from the interior of the room, or can easily be unlocked from the exterior by a person having the proper key; Y

In place of providing the hinged part of the casing with a loop, L, it can be provided with an aperture or recess for receiving the end of the latch-bolt K.

I do not abandon or dedicate to the public any patentable features set forth herein and not hereinafter claimed, but reserve the right to claim the same either in a reissue of any patent that may be granted upon this application or in other applications for Letters Patent that I may make.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. In a lock, the combination, with a sliding bolt, of a hinged section of the casing for thrusting the bolt outward, and means for looking said hinged section in posit1on, substantially as herein shown and described.

2. In alock, the combination, with acasing having a hinged section, and means for lock- 7 ing the same in position, of a sliding bolt connected to an arm of a nut surrounding the knob-spindle, and a collar surrounding the nut, and provided with a downwardlyprojecting arm, substantially as herein shown and described.

3. In a lock, the combination,with a casing provided with a hinged section having a loop at its free end, of a sliding latch-bolt for engagenient with the loop of the hinged section, and means for operating said latch-bolt, substantially as herein shown and described.

4. In a lock, the combination, with a casing provided with a hinged section having aloop on its free end, of a sliding latch-bolt for engagement with the loop of the said hinged section, a tumbler pivoted to the latch-bolt, and means for operating the tumbler, substantially as herein shown and described.

-5. In a lock, the combination, with a lockcasing provided with the hinged part B, having loop L, the bolt 0, connected to the arm of the nut E, surrounding the knob-spindle, and the armed collar G, surrounding the nut, of the latch-bolt 70, provided with the lugs K, and the angular tumbler N, pivoted to the latch-lock, substantially as herein shown and described.

6. In a lock, the combination, with a lockcasing provided with the hinged part B, having loop L, the bolt 0, connected to the arm of a nut, E, surrounding the knob-spindle, and an armed collar, G, surrounding the nut, of

the latch-bolt K, provided with the lugs K .and the projection W, and the angular tumbler N, pivoted to the latchbolt and provided with the offset 111, substantially as herein shown and described.

7. The combination, with a lock-casing, of the'hinged part B, the nut E, the collar G, provided with an arm, J, and the arm D, the latter connected with the sliding bolt 0, substantially as herein shown and described, and for the purpose set forth.

8. The combination, with a lockcasing, of the hinged part B, having a recess, J, the nut E, provided with a tooth, I, the collar G, provided with a recess, H, and an arm, J, and the arm D, the latter connected with the sliding bolt 0, substantially as herein shown and described, and for the purpose set forth.

ELIJAH NYSWONGER.

Vitnesses:

MILTON INGLISH, ADOLPH E. G. Sonmonr. 

